Glass scraper



FIG. 1 is a perspective view of a glass scraper;

FIG. 2 is a top view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a rear view thereof; and,

FIG. 6 is a right side view thereof.

The broken lines in the figures depict features of the glass scraper that form no part of the claimed design. 

CLAIM The ornamental design for a glass scraper, as shown. 